Inputs of the correlation process are a set of JPEG images and GPS data
encoded in GPX (GPS Exchange Format) format.

If GPS data are available at the precise moment the photo was taken
(with a 1-second granularity) the GPS data are stored unmodified in
EXIF fields. If they are not linear interpolation of GPS data
available at moments before and after the photo was taken can be used.

Both a command line tool (package gpscorrelate) and a GTK+ graphical
user interface for it (package gpscorrelate-gui) are provided.

/usr/share/doc/gpscorrelate-gui/README

GPSCorrelate
Daniel Foote, 2005.
This program correlates digital camera photos with GPS data in GPX format.
The documentation is in the doc/ directory. It is in HTML format.
To build, you will need:
The Exiv2 library (C++ EXIF tag handling): http://www.exiv2.org/
libxml
GTK+ (if compiling the GUI).
You can build the command line version and the GUI together simply with
"make". There is present
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/usr/share/doc/gpscorrelate-gui/changelog.gz

Release History:
v1.0: 24 Feb 2005
Initial release.
v1.1: 1 Mar 2005
Instead of ignoring track segments, we record them now,
and by default don't interpolate between them. This can
be disabled, ie, match between track segments.
v1.2: (Not released until 1.3)
Added --machine/-o option. This outputs the tags from
the passed files in a machine-readable CSV output.
v1.3: 25 April 2006
It wo
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